Ryuuko has never felt like he had anything to hide. Even when he went behind Shirogane's advice to create Kou he had never technically gone behind Shirogane's back. He had, honestly and without hiding his intentions presented his idea to Shirogane. It was just that he decided not to heed his Counterpart's advice in light of the fact that he was fairly confident in his calculations and because Shirogane's opinion was rendered invalid since he hadn't even bothered to hear Ryuuko out.

His hand curls around her more gently. It was probably more natural to do that than to not move his hand at all.